People like to take risks and they also like to talk about. Here's how:
Across the board
Act of God
As good luck would have it
Back the field
Bet your bottom dollar
Bread always falls buttered side down
Copper-bottomed
Dark horse
Dead ringer
Don't count your chickens before they are hatched
Draw a blank
Eeny, meeny, miny, mo
Hedge your bets
Rub of the green
Second-guess
Take potluck
The die is cast
Third time lucky
Turn the tables
Turn up trumps
Up the ante